REST API with JWT, Spring Boot(Maven), MyBatis

BBS BackEnd

Purpose

Understand and implement JWT.
... Spring Boot Excution.
... Inteceptor, Configurer.
... REST API.

Technical Stack

Spring Boot(Maven)
MyBatis
MySQL
JWT
REST API
Swagger

Spring Boot

HttpRequest -> Controller -> Service -> Mapper -> MySQL

Applicatin.java

Main Method in Spring Boot.

public class Application {

    public static void main(String[] args) {
        SpringApplication.run(Application.class, args);
    }

}

GlobalExceptionHandler.java

400, 401, 404, 500, etc... Handle exceptions and Return Httpstatus.

@RestControllerAdvice
@RestController
public class GlobalExceptionHandler implements ErrorController {

    @ExceptionHandler(value = Exception.class)
    @ResponseStatus(HttpStatus.INTERNAL_SERVER_ERROR)
    public void baseException (Exception e) {e.printStackTrace();}

}

JWTInterceptor.java

JWT intercepts all requests.

@Component
public class JWTInterceptor implements HandlerInterceptor {

    // Name of JWT
    private static final String HEADER_user = "token_name";

    @Override
    public boolean preHandle (HttpServletRequest request, HttpServletResponse response, Object handler) {

    }

}

MVCConfig.java

Solve CORS Issues.

@Configuration
public class MVCConfig implements WebMvcConfigurer {

    @Override
    public void addCorsMappings(CorsRegistry registry) {
        registry.addMapping("/**")
                .allowedOrigins("*")
                .allowedHeaders("*")
                .exposedHeaders("token_name")
                .allowedMethods("GET", "POST")
                .allowCredentials(true)
                .maxAge(3600);
    }

}

SqlSession.java

Creating SQL Session.

@Configuration
public class SqlSession {

    @Bean
    public SqlSessionFactory sqlSessionFactory(DataSource dataSource) throws Exception {

        SqlSessionFactoryBean sqlSessionFactoryBean = new SqlSessionFactoryBean();
        sqlSessionFactoryBean.setDataSource(dataSource);

        Resource[] res = new PathMatchingResourcePatternResolver().getResources("classpath:mapper/*.xml");
        sqlSessionFactoryBean.setMapperLocations(res);

        sqlSessionFactoryBean.setTypeAliases(new Class<?>[] { UserModel.class, PostModel.class, ReplyModel.class, FileModel.class});

        return sqlSessionFactoryBean.getObject();

    }

}

SwaggerConfig.java

Swagger Configure

@Configuration
@EnableSwagger2
public class SwaggerConfig {

    @Bean
    public Docket api() {
        return new Docket(DocumentationType.SWAGGER_2)
                .select()
                .apis(RequestHandlerSelectors.basePackage("com.nomsa.bbs.Controller"))
                .paths(PathSelectors.any())
                .build();
    }

}

DataBase

User

Column	Datatype	PK	NN	UQ	UN	AI
index	INT(11)	Yes	Yes		Yes	Yes
identification	VARCHAR(30)		Yes	Yes
password	VARCHAR(50)		Yes
name	VARCHAR(15)		Yes
available	CHAR(1)		Yes

Post

Column	Datatype	PK	NN	UN	AI	Default
index	INT(11)	Yes	Yes	Yes	Yes
writer	INT(11)		Yes	Yes
created	DATETIME		Yes			CURRENT_TIMESTAMP
type	VARCHAR(15)		Yes
title	VARCHAR(100)		Yes
content	TEXT		Yes
available	CHAR(1)		Yes

Reply

Column	Datatype	PK	NN	UN	AI	Default
index	INT(11)	Yes	Yes	Yes	Yes
writer	INT(11)		Yes	Yes
created	DATETIME		Yes			CURRENT_TIMESTAMP
post	INT(11)		Yes	Yes
content	VARCHAR(300)		Yes
available	CHAR(1)		Yes

File

Column	Datatype	PK	NN	UN	AI
index	INT(11)	Yes	Yes	Yes	Yes
post	INT(11)		Yes	Yes
name	VARCHAR(100)		Yes
size	INT(11)		Yes	Yes
bytes	LONGBLOB		Yes
available	CHAR(1)		Yes

Histories

2018.08.06. JWT Util.
2018.08.07. Define REST API.
2018.08.08. Sign Up, Sing In.
2018.08.09. Post Write, Reply Write.
2018.08.10. Get Posts, Get Post.
2018.08.11. Problems during communication. (CORS)
2018.08.12. Solve CORS. Spring Boot excution problem when solving CORS.
2018.08.13. Solve Spring Boot excution.

sociablesasha/BBS